A proceeding before the Supreme Court of India may be instituted through different constitutional routes. The two most commonly invoked are a Writ Petition and a Special Leave Petition (SLP). Though both lie before the same Court, they arise from distinct constitutional provisions and serve fundamentally different purposes.

A Writ Petition lies for the enforcement of fundamental rights guaranteed under the Constitution. Where the State or a public authority infringes rights such as equality before the law, freedom of speech and expression or personal liberty, the aggrieved person may invoke the jurisdiction of the Supreme Court under Article 32 of the Constitution of India. The right to seek such relief is itself constitutionally guaranteed. In entertaining proceedings under Article 32, the Court discharges its constitutional function as the guardian of fundamental rights.

A Special Leave Petition is invoked after a court has rendered a decision. Under Article 136 of the Constitution of India, the Supreme Court may, in its discretion, grant special leave to appeal from any judgment, decree, determination, sentence or order passed by any court or tribunal in the territory of India. Notably, the provision does not create a right of appeal and merely vests the Court with a discretionary jurisdiction to grant leave. This jurisdiction is exercised sparingly, ordinarily in cases involving grave miscarriage of justice, manifest illegality, substantial questions of law of general importance or violation of principles of natural justice etc.

There is, however, a distinction between a SLP and a Civil Appeal. A Civil Appeal is also an appeal to the Supreme Court, but it is founded on a statutory right of appeal expressly created by the legislation under which the appeal is preferred. For instance, an appeal against an order of the Securities Appellate Tribunal lies to the Supreme Court under Section 15Z of the Securities and Exchange Board of India Act, 1992, and is filed as a Civil Appeal, not under Article 136 of the Constitution. Similarly, appeals lie to the Supreme Court under Section 423 of the Companies Act, 2013 from orders of the National Company Law Appellate Tribunal and under Section 67 of the Consumer Protection Act, 2019 from decisions of the National Consumer Disputes Redressal Commission. In each of these cases, the right of appeal is statutory and the remedy is structured within the parent enactment. By contrast, an SLP under Article 136 of the Constitution is not a matter of right but a discretionary jurisdiction exercised by the Supreme Court. It is therefore essential to identify the forum whose decision is under challenge and to ascertain whether the statute provides a direct statutory appeal to the Supreme Court or whether recourse must be had to Article 136.

Coming back to the difference between a writ petition and an SLP, the distinction assumes importance in its practical operation. Where a person is unlawfully detained, denied procedural fairness or subjected to arbitrary action by the State, the appropriate remedy is a writ petition invoking the Court’s constitutional jurisdiction. Conversely, where a judicial or quasi-judicial determination is alleged to suffer from legal error and no further statutory appeal is available, recourse may be taken to a SLP seeking the Supreme Court’s discretionary intervention. In substance, a writ petition challenges the legality of executive or State action, whereas a SLP calls into question the correctness of a judicial determination.